Upgrade to QA-1 Upper Control Arms
I have been looking for a way to improve the drivability of the Challenger and after pouring over many of the articles published on this forum, it appears the answer was in significantly increasing the Castor angle. I played with the stock upper control arms and found out that the best I could get (caster wise) and still have some negative camber was about 1/2 degree positive Caster. So, after comparing options put forth on this forum (many thanks to those that published their efforts), I decided to try the QA-1 uppers.
After the install I was able to get about 5 degrees of positive caster with 3/4 degree negative Camber. Once i had these installed I had the car out for a drive. This was the first time since I've owned the car that the steering and drivability of the car was starting to get where I wanted it. This was a very cost effective solution.
Other mods:
After the install I was able to get about 5 degrees of positive caster with 3/4 degree negative Camber. Once i had these installed I had the car out for a drive. This was the first time since I've owned the car that the steering and drivability of the car was starting to get where I wanted it. This was a very cost effective solution.
Other mods:
- Steer and Gear rebuild on the factory box with the firm feel level package and RT limits built in.
- R/T longer Pitman arm
- Long Idler arm.
- 17" rims front and back. (17 X 8 front, 17 X 10 rear)
- Relocated the rear spring perches inboard 1" to accomodate 10" wide rims (made my own relocation brackets for the body and springs, used Dr. Diff spring perches for the rear axle)
- Modified the steering column to include a bearing at the end of the column.
- Previous page: Custom Door Panels finished
- Next page: Bodywork has begun
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